a) Explain how Fourier's law of conduction (in one-dimensional cartesian system) can be applied to experimentally measure the thermal conductivity of solid materials. What are the necessary conditions and assumptions? b) Two surfaces make up an enclosure where surface 1 is flat and has area A₁, temperature T₁ and emissivity &. Surface 2 is black and has temperature T₂. Show that the net power transfer rate (net heat flux) in W/m² at surface 1 is given by &₁0 (T₁-T₂).

a) Explain how Fourier's law of conduction (in one-dimensional cartesian system) can be applied to experimentally measure the thermal conductivity of solid materials. What are the necessary conditions and assumptions? b) Two surfaces make up an enclosure where surface 1 is flat and has area A₁, temperature T₁ and emissivity &. Surface 2 is black and has temperature T₂. Show that the net power transfer rate (net heat flux) in W/m² at surface 1 is given by &₁0 (T₁-T₂).

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter42: Heat Gains And Heat Losses In Structures

Section: Chapter Questions

Problem 5RQ: As the temperature differential across a panel increases, A. the rate of heat transfer through the...

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Hello. Can you please help answer the question shown in the photo? It is a 3-part question which I have attempted many times. I was able to calculate the correct answer for part 2, but part 1 and part 3 still says I am incorrect. Please show how to properly solve the problem. The topic is heat transfer. Thank you.
Hello sir Can you solve this problem because i did'nt understand about subject (heat transfer)